Learning Thai Manners 1
In this second group of photos, the students are demonstrating how to receive a gift from an adult. First they sit on the floor with their left leg tucked under the right one. They then prostrate down to the floor with their hands together in a prayer-like gesture. Notice the position of their elbows on the ground.
This is then held for a few seconds before the hands are clasped together like in a handshake. Next they sit back up straight with their hands on their laps.
Link : http://www.thaicultureblogs.com/index.php/learning-thai-manners-part-1/